Constructional material comprising rail filler functioning as an expansion joint



June 2, 1931. i A. c. FISCHER CONSTRUCTI L MATERIAL COMPRISING R 1,808,302 AIL FILLER ANSION JOINT ONA FUNCTI EXP 5.

ONING AS AN Filed D ec Patented June 2, .1931

UNITED STATES PATENT. OFFICE ALBERT C. FISCHER, OFOEIOAGO, ILLINOIS, ASSIG-NOR THE PHILIP CAREY MANU- FACT-U RING COMPANY, A CORPORATION OF OHIO CONSTBUGTIONAL MATERIAL COMPRISING BAIL FIIJIIEBFUNOTIONING AS AN EXPANSION JOINT Application m December 5, 1327. serial in. 287,883.

.8 material wherever expansion and contraction must be provided for.

' A- rail filler acts as an expansion joint betweenthe rail and adjacent paving. The previous art teaches that one of the eatures of expansion joint is to take up expansion and contraction between the paving and the This invention relates particularly to the elevations and depression molded in the material itself, which look the material with the paving or look the paving with the material, and relates to constructional material adapted for use as a, rail filler to take up the expansion and contraction between paving elements and as constructional material which can be locked in the paving, yet not lock adj acent aving members or adjacent rigid members in themselves, 3

This invention relates particularly to a flexible board-like structure in contra-distinction to a rigid, board-like structure, and is composed of vegetable fibers of various kinds, such as, flax, hemp, straw, or any other ingredients which may be suitably matted together in felted form, or otherwise interwoven, as

is customary in forming such fibrous mate-'- rial into continuous sheets. This vegetable material may be waterproofed or not, as is preferred, -by injecting therein any bituminous or petroleum waterproofing saturants adapted thereto, thus making the material waterproof but not destroyin the felted,

matted form, which gives-to t e expansion ner that it may present smooth sides to the face of the concrete and by rollin or form ing this matted, fibrous materia between rollers, making various formations thereon in the shape of elevations and depressions or corru ations against which the-concrete is forme such elevations and corrugations being uni orm and oppositely constructed so that the thickness of the expansion joint at any one point is uniform; thus, if a corrugation is elevated on one side the opposite side of that elevation would be depressed on the opposite side of the joint. The purpose of these elevations and depressions primarily is to prevent the joint from creeping out of the crevice.

Another object of my invention is to form this fibrous material as in matted form in a wet condition, then run through form presses or suitable machinery to mat the material together. The material should then preferably be dried, either in warmin ovens or otherwise, and if desired, suitabl proofed.

With reference to the drawings which accompany and form a part-of this specification: 3

Figure 1 represents a section of constructional material showing elevations D, depressions E, and irregularly overlapping, foliated mats F. p i

Figure 2 illustrates a cross-section of Fi ure 1, showingdepressions E, elevations and foliated, irregularly overlapping mats F.

Figure 3 illustrates a cross-section of Figure 4, showing depressions E, elevations D and foliated, overlappin mats F.

Figure 4 illustrates aiody section of the structure shown in cross-sectlon Figure 3, in which D represents the elevations, E the depressions and F the irregularly overlapping, foliated mats; w

Figure 5 illustrates the locking or molding of the paving material in the face of the constructional joint without looking the slabs, as shown along the lines H, G'representing the concrete, D the elevations and E the depres- SlOIlS.

Figure 6 illustrates a rail filler flmctionin as an expansion joint havin'g elevations y water- A and depressions E, and a body structure composed of foliated, irregularly overlapping mats F. In this modification one face surface may be smooth to completely fill the rail cavity, the exposed face only being provided with the depressions and projections to lock with the paving. The exposed face may be advantageously extended to project along the ball of the rail to separate the pavement therefrom.

My invention consists of irregularly overlapping fibrous mats of waterproofed material assembled together into a block-like structure. The linear fibrous elements may exist by reason of the felting between the overlapping, fibrous mats. T e fibrous material may be suitably matted together in any convenient form and waterproofed be-- fore or after felting. By felting I mean gath ering together the fibrous elements and forming same into sheet form.

I claim:

1. A preformed rail filler functioning as an expansion joint, comprising a flexible,

I boardlike strip embodying in its structure interrupted and substantially parallel mats of vegetable fibers pressed together and irregularly overlapping one another.

2. A preformed rail filler functioning as an expansion joint, comprising a flexible, boardlike strip made up of interrupted and substantially parallel mats of linear fibers of various kinds, said mats irregularly overlapping one another,-

3. A preformed rail filler functioning as an expansion joint, comprising a waterproofed, blocklike strip embodyin in its structure interrupted and substantia ly parallel mats of fibrous material irregularly overlapping one another.

4. A preformed rail filler functioning as an expansion joint, comprising waterproofed, interrupted and substantially parallel mats of fibrous material in varying dimensions, and finely divided fibrous material, and assembled in irregular, overlapping, blocklike structure.

5. A preformed rail filler functioning as an expansion joint, comprising a flexible, boardlike strip embodying in its structure interrupted and substantially parallel mats of fibrous material irregularly overlapping one another and permeated with bituminous material.

6. A preformed rail filler functioning as a means to take up expansion and contraction between constructional material, composed of compressible and expansible material, provided on its opposite faces with integral, relatively shallow depressions and projections for the purpose of preventing the strip from being bodily dislocated from its position between adjacent constructional sections.

7. A preformed rail filler functioning as an ex 'mnsion joint, comprising a mixture of hi- 8. A preformed rail filler functioning as I an expansion joint, comprising a mixture of bituminous material and fibrous mats, formed into a blocklike structure, having upon at least one of its faces elevations and depressions for the purpose of locking the face of the filler to the'face of the construe-- tional material placed ainst it.

9. A preformed rail ller functioning as an expansion joint, comprising a waterproofed, flexible, boardlike strip embodying in its structure interrupted and substantially parallel mats of fibrous material irregularly overlapping one another, and having upon the face which is presented to the constructional material contacting with the preformed constructional material, elevations and depressions for the purpose of locking the face of the filler with the constructional material placed ainst' it, said elevations and depressions being formed in the surface of the filler and retaining its form without becoming part of the constructional material placed against it.

10. Preformed constructional material in the form of a rail filler functioning as an expansion joint, comprising fibrous material and a waterproofed inder, having elevations and depressions embossed upon a surface thereof for the purpose of engaging the surface in interlocking relation with a rigid constructional material placed in contact with the elevations and depressions, said elevations and depressions remaining independent and not ecoming'a part of the constructional material placed against it.

11. The herein described method of locking a rigid constructional material with a flexible, non-rigid material functioning as an expansion joint, by impressing elevations and depressions in the face of the non-rigid material, permitting the rigid material when plastic to be poured against the non-rigid material and contacting the inverted form, thus locking the rigid material when set with the non-rigid-material and so limiting the elevations. and depressions that the rigid structural elements will not in themselves interlock with each other.

12. The herein described method of looking a rigid constructional material with a flexible, non-rigid material functioning as an expansion joint, by impressing elevations and depressions in the face of the non-rigid material, permitting the rigid material when plastic to be poured aagmst the non-rigid material and contacting the inverted form,

thus locking the rigid material when set with the non-rigld material and so limiting the elevations and depressions that the rigid struc-v tural elements will not in themselves interlock with each other, the elevations and depressions remaining independent and not becoming a part of the plastic material poured against the elevations and depressions.

13. The herein described method of looking rigid constructional material with a flexible, non-rigid material functioning as an expansion Joint, by impressing elevations and depressions in the face of the non-rigid material, permitting the rigid material when plastic to be poured against the non-rigid material, said material taking the form of the face of the non-rigid material, thus enabling the rigid material to lock with the face of the non-rigid material without said non-rigid material becoming a part of the rigid material.

14. In a preformed construction material comprising a flexible, boardlike strip embodying in its structure separate mats of fibers and a bituminous material bonding said mats together.

Signed at Chicago, Illinois, this 2nd day of December 1927.

ALBERT C. FISCHER. 

